Home / 724,737.60-1,000,146.96-402,467.76

Finding the Fourth Proportional to 724,737.60, 1,000,146.96 and 402,467.76

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Solution

The fourth proportional to 724,737.60, 1,000,146.96 and 402,467.76 is: 555,410.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,737.60 : 1,000,146.96 = 402,467.76 : x
  2. Step 2: Convert to fraction form
    724,737.60/1,000,146.96 = 402,467.76/x
  3. Step 3: Cross multiply
    724,737.60x = 1,000,146.96 × 402,467.76
  4. Step 4: Simplify right side
    724,737.60x = 402,526,906,662.01
  5. Step 5: Solve for x
    x = 402,526,906,662.01/724,737.60
  6. Step 6: Final answer
    x = 555,410.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.